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Best work with cubic feet, first calculate the volume of the tank in cubic feet:
= Length * width * height (all dimensions in feet)
Then :
For US gallons, multiply volume (cubic feet) by 7.4805
For UK gallons, multiply volume (cubic feet) by 6.2288
7,480.52 gallons for every inch of depth
A square foot has no volume. if you are asking how many gallons are in a cubic foot the answer id 7.4805195.
There are no gallons of water in a square foot. Gallons is a unit of volume, and square feet is a unit of area, not volume. If you are asking about cubic feet, however, the answer is there are about 7.5 gallons in a cubic foot.
One cubic foot of water is 7.4805 gallons.
A gallon is a measure of volume whereas a square foot is a measure of area. So there are no gallons in a square foot and no square feet in a gallon.
1 gallon
== 478.79 gallons, there are 7.481 gallons in a square foot. So that is 64 x 7.481== 478.79.==http://dictionary.reference.com/writing/styleguide/weights.html
There are 7.48052 US gallons per cubic foot.
7.5
Gallon is a unit of volume so I assume you meant how many gallons per cubic foot. The answer is 7.48 gallons per cubic foot.
1 cubic foot of water is 7.48052 US gallons.
One cubic foot of water is about 7.48 (7.48052) US gallons.